10 Questions
Which aspect is not mentioned in the description of the mandibular first premolar?
Incisal
What is the characteristic feature of the mandibular first premolar in terms of the number of cusps?
Double cusp
At what age does the crown of the mandibular first premolar complete its eruption?
10-12 years
What is the geometric outline of the facial and lingual surfaces of the mandibular first premolar?
Trapezoidal
Which part of the mandibular first premolar has a nearly concave mesial and distal outline?
Contact areas
What is the shape of the geometric outline of the facial and lingual aspects in all teeth?
Trapezoid, shorter cervically and longer incisally/occlusally
In which teeth are the geometric outline of the proximal aspects rhomboid in shape with the distal aspect being shorter occlusally and longer cervically?
Lower posterior teeth
What is the characteristic feature seen in the lower 4 teeth on the occlusal surface?
Mesiolingual developmental groove
What type of convergence is prominent in both crown and root on the lingual surface?
Lingual convergence
What characterizes the lingual outline from the cervical line to the cusp tip?
Convex with maximum convexity at the mesial 1/3
Study the surface anatomy of the mandibular first premolar with this lecture by Ass. Prof. Fatma Adel Saad. Learn about the occlusal, buccal, lingual, mesial, and distal aspects, as well as the prominent features of the tooth structure.
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